Coordinate input instrument



FIG. 1 is a top-front-right perspective view of a representative embodiment of a coordinate input instrument according to my new design;

FIG. 2 is a bottom-rear-left perspective view thereof;

FIG. 3 is a right side elevational view thereof, wherein the left side elevational view is a mirror image of the right side elevational view;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The dashed broken lines in the drawings show portions of the coordinate input instrument that form no part of the claimed design. 

CLAIM The ornamental design for a coordinate input instrument, as shown and described. 